Free tools
Tools that measure your listing
No account, no Seller Central connection. Each tool works from the same model we grade with inside the product — applied to one listing instead of your whole catalogue.
Keyword byte calculator
Enter one keyword per line and check the byte length of your backend keywords.
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SWF Listing Checker
Paste your listing copy or enter an ASIN — and see at which stage of the buying decision you lose the buyer.
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Conversion calculator
Set conversion, price, visitors, margin and your SWF score — and see how much monthly revenue and profit hangs on your listing copy.
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Title splitter
Paste up to five titles — and see what the cut at 75 characters removes, which buying question that leaves unanswered, and in which order to convert them.
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Version comparison
Old and new version through the same question catalogue side by side — including the list of questions the new version no longer answers.
Open toolWant to optimise your whole catalogue?
Start free to SELLRZ. Once approved, choose the right plan and only then connect Amazon.
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